Invincible from the Ultimate Beginning

He transmigrates into the world of KO One 3 and gets a super-fusion System. That's how his path to invincibility begins.

I'm really no good at writing introductions. I'm a beginner, so please bear with me. I have no outline and write and post as I go. This isn't a full-time job; I generally post one chapter a day, so you might want to wait and binge it later.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.